JAMB 2003 · UME · Q1

Simplify $1 - \left(2\frac13 \times 1\frac14\right) + \frac35$ .

Worked solution (try it first)

Bracket first: $2\frac13 \times 1\frac14 = \frac73 \times \frac54$
$= \frac{35}{12}$ .
Now $1 - \frac{35}{12} + \frac35$ .
The LCD is 60: $\frac{60}{60} - \frac{175}{60} + \frac{36}{60} = -\frac{79}{60}$ .
$-\frac{79}{60} = -1\frac{19}{60}$ , option C.